Tube gas sampling 350, nozzle (GL14), septum Back Catalog number: OST-201-3421 Availability: In the manufacturer's stock Price on request - + Recommended U-T14H2S-2S H2S cold trap, UNITY 2/xr Price on request T-8MAT Materials emissions cold trap, TT24-7 Price on request T-11OP Ozone precursors trap, TT24-7 Price on request